Pool step



FIG. 1 is a top, front and right side perspective view of a pool step showing our new design, portions thereof being show in broken lines for illustrative and environmental purposes only and the broken lines forming no part of the claimed design;

FIG. 2 is a bottom, rear and left side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side thereof;

FIG. 7 is a rear plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

We claim the ornamental design for a pool step, as shown and described. 